WARNING:tensorflow:Issue encountered when serializing global_step.

[yuxuan2015]

WARNING:tensorflow:Issue encountered when serializing global_step.
Type is unsupported, or the types of the items don't match field type in CollectionDef. Note this is a warning and probably safe to ignore.
'Tensor' object has no attribute 'to_proto'

Always repeat this Error

[leolle]

me too.

[Ay-Youb]

me too